1. Report of Commander, now Captain, James Clark Ross, RN, FRS, FLS in Narrative of a Second Voyage in Search of a North-West Passage, and of a Residence in the Arctic Regions during the years 1829, 1830, 1831, 1832, 1833 (Webster, London, 1835).
2. Magnetic Declination Chart 1980.0, Canada (Division of Geomagnetism, Department of Energy, Mines and Resources, Ottawa).